Lubricator



7 Sept. 30, 1930.

1 Filed June 19 1926 E. F. TERRY 1,775,370

LUBRICATOR 2 Sheets-Sheet 1 zlwuento'c MI%Z 29 I f l awomwq Sept. 30, 1930. I E. F. TERRY 1,776,870

LUBRI CATOR Filed June 19, 1926 2 heets-Sheet 2 EDWARD r. TERRY, 01% DENV R,

' February 17,1926, which was issued Oct. 23

Patented: Sept. 30, 1930 UNITEDZSTATES PATENT: orif ce COLORADO, ,ASSIGNOR, BY ESNE ASSIGNMENTS, ro

THE ,VGARDNER-DENVER COMPANY, or QUINCY,- ILLiNoIs, 'A; COEPORATIONQ' or 1 DELAWARE Application filed June 19,

of the type disclosed in my co-pendin .1 V. g plication for Patent Serial N 0.

88,866, filed 1928 as Patent No. 1,688,946, wherein a pendulum member isrotatably mounted within the cas1ng,and carriesthe means for direct- 'Inthe structure disclosed in that application a two-part casing is employed." 7

,; One ofthe objects of the present invention provide a practical structure, in which located :therein and operating in [thesame manner as in the structure; above mentioned. 1

' This arrangementeliminates one of the joints and consequent chance, of leakage, as well as places the pendulum, and its mounting; so that the possibility of its being tampered "with is materially-lessened. v V K Y p The method of forming the jlubricator is covered in divisional applicationfSerial No.

167,765 filed Feb. 12,1927, which issued J an; 31, 1928 as'Patent 1,657,597. V

In the accompanying drawings t Figure 1 is a longitudinal sectional view through the preferred embodiment of the invention, 1

Figure'2 is acrosssectional view on the line 2-2 of Figure 1,-

Figure? is a detail perspective view of the stem adjusting key that may be employed,

, Figure 4 is a longitudinal sectional View of the core parts and pendulum member in separated'relation, t Y p 7 F'gure 5'is a sectional View on the line 5- -5 ofFigure 4,

Figure 6 is a side elevation of the coreand pendulum member in assembled relation.

, igure 7 is a sectional view through a mold in completed form casing. a v V Figure 8 is a planview of the stem-holding spring,

Figure 9 is a view of the spring blank,

In the embodimentdisclosed, a single piece dal form, the ends of the vcaslng-being provided with inlet and outlet ports 9, the walls for the castingof the LUBRIOATOR 1926. Serial No. 117,118.

of which areinternally threaded, as shown at 'lOfor the reception of hose couplings. lat eral openlng 11 is alsov provided,-"the walls being internally threaded, as illustrated at 12 Y r to, receive the threaded end of 'a closure plug 13. The casing providesan internal lubricant reservoir 14.

Apendulum member is locatedin the re servoir or chamber 14, and includes'a sleeve section 15 having a passageway 16 therethrough,

the ends of saidpassageway being enlarged to providebearing sockets 17; "This sleeve 7 member has depending therefrom a pendulum mass '18, and has an upstanding tub portion 19 adapted'to aline. with the opening 11. The tubular portion 19 and pendulum mass 18 have a stem chamber -20 that-is disposed transverselyofthe bore 16. In thischamber isrotatab-lymounted' a stem 21 having an annular groove- 22 near its-upper end.

" In this groove is located a bowed friction spring 23 that has longitudinallysplitterminals 24. The spring serves to fricti'onally holdthe stem' in place in thechamber, both from" longitudinal displacement and in different positions to which it is rotated. Inasmuch as the stem 21 is placed in position after the'pendulum is hung on itstrunnions within the casing, bly of the" parts; Y o

A lubricant conduit 25 has an inletend 26 formed in the bottom of the pendulum mass, and extends upwardly whereit isin communication with an annular groove 27 formed in the upper end ofthe'stem' 21. The inlet end 26 is preferably covered by a screen'28g The stem furthermore hasa longitudinal downwardly extending bore orlchannel 29 in com munication with the groove27, and said chanl nel has transverse outlet ports 30 which open through opposite sides of the stem 21 midway of the -bore16. This stem also has at right angles to the'ports 30 fluid inlet ports3l' in communication with a downwardly extending channel '32 thatopens through the lower end of thestem into the lower end of the bore or chamber 20. From this lower end a-conduit the spring 23 permit's the asse'in- 33 leads upwardly and opens into the u pper end-of the lubricant reservoir 14.

As will be clear by reference to Figures 1 and 2, the upper end of the stem 21 is adapted to aliue with the opening 11, and is thus accessible therethrough. When the plug 13 is removed, means are provided by which the stem can be turned. Thus the said stem is shown as provided in its upper end with spaced sockets 34 adapted to be engaged by the prongs 35 of a turning tool 36, illustrated in Figure 3.

The pendulum member is rotatably supported within the chamber 14 by journal sleeves .37. These sleeves are preferably pressed into the inner ends of the ports 9, inward extensions 38 being formed in the easing as integral parts of the ends thereof, and said sleeves engaging in the journal sockets 17, so that the pendulum member rotates thereon. It will thus be seen that an openended passageway for air or other fluid 6X- tends directly through the casing, being formed by the terminal ports 9, by the sleeves 37 and the bore 16, and it will also be noted that the conduits 25 and 33 are in communication with said passageway. Consequently if fluid under pressure passes through the passageway and there is lubricant in the reservoir 14, lubricant will rise through the conduit 25, and thence passing downwardly, will escape through the ports 30, where it will be caught by the passing fluid and carried away with it.

Careful investigation of the operation leads to the belief that the action is due to the creation of a partial vacuum on the downstream side of the stem 21, due to the flow of the air around opposite sides of the same. The port 30 opens into this partial vacuum and being in communication with the lower portion of the lubricant reservoir, lubricant will of course flow to and through it to the vacuum and thus find its way into the air stream. The conduit 33 on the other hand appears to act principally as a pressure equalizing vent. For example, it has been ,found that oil wll be delivered freely and eiiectively, if the conduit 33 is stopped, inasmuch as live pressure finds its way through the passageway 30.292'5. However, if the conduit 33 were not provided, when the air is turned ofl, the excessive pressure of the compressed air then in the reservoir would react to force'all the oil in the reservoir out of the same.

By turning the stem 21, the pressure in the lubricant reservoir can be varied, thus altering the amount'of lubricant delivered. It will also be noted that irrespective of how the casing may turn or roll, the pendulum mass will maintain the motive fluid supply and lubricant delivery means always in a vertical position, thus insuring that the'inlet end 36 of the lubricant conduit will be in the lowermost part of the reservoir or chamber 14,

while the fluid delivery conduit 33 will have its outlet end in the upper portion of said chamber.

Inasmuch as the casing 8 is of one piece and the openings 9 and 11 are of less size than the pendulum member, it has been a problem as to the placing of the pendulum member within the casing and mounting it. This problem has been solved in the following manner.

The casing being of metal, preferably cast, a core for the interior has been formed of two sections, as illustrated in Figures 4: to 7, the sections being respectively desig nated 3S) and 40, The sections when placed together,as illustrated in Fig. 6, produce the complete core, constituting a body or chamber-forming portion 4E1, stems 42 which produce the end ports 9 in the casing, with an choring terminals 13, and an upstanding stem a l that forms the opening 11. The body portion 41 is of suilicient size to receive a completed pendulum member. Consequently the sections of said body member are formed with sockets 45 and 4:6 in which the pendulum member is received, said member being preferably, though not necessarily located at right angles to its final position, as will be clear by reference to the aforesaid figures. The-pendulum member there fore having been introduced and the core sections fitted together, the joint between them is sealed, and the cavity 47 for the casing having been formed in a mold in the usual manner and as indicated in Figure 7, the core is introduced, the mold sections placed-together and the casting made. i

The mold is then broken, the casting removed and the core is broken and removed, leaving the pendulum member within the casing. After the casing has been dressed and litted, the journal sleeves 37 are then pressed into the extensions 38, with their inner ends engaged in the journal sockets 17 of the pendulum member, the fitting being of course such that the pendulum will rotate thereon. This completes the mounting for the structure, as shown in Figures 1 and 2.

From the foregoing, it is thought that the construction, operationand many advantages of the herein described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction and method of operation may be resorted to without departingirom the spirit or sacrificing any of the advantages of the invention.

What I claim, is

1. In a lubricator, the combination with a single piece casing body enclosing a lubri cant reservoir, of a pendulum member located within the reservoir, means carried by the casing on which the pendulum is mounted, a passageway through the casing and pendulum member for the flow of fluid and of less cross sectional area than the reservoir and pendulum, and means carried by the pendulum member for directing lubricant from the reservoir into thepassageway.

' 2. In a lubricator, the combination with a single piece casing body enclosing a lubricant reservoir and having end ports of less cross sectional area than the reservoir for the inflow and outflow of fluid, of a pendulum member of greater cross sectional area than the ports, said member being located within the reservoir and having a passageway therethrough for a the passage of fluid entering and leaving the ports, journal sleeves fitted in the ports and engaged with the pendulum member, and means carried by the pendulum member for directing lubricant from'the reservoir into the passageway.

3. In a lubricator, the combination with a casing body enclosing a lubricant reservoir and having end ports for theinflow and outflow of fluid,of a pendulum member located Within the reservoir and having an open ended passageway therethrough in line with the casing ports, journal sleeves fitted into the ports through the outer ends thereof and into the ends otthe passageway, and means carried by the pendulum member for direct ing lubricant from the reservoir into the passageway, g i r 4. In a lubricator, th'ecombination with a casing forming a lubricant reservoir and having an openingin one side, of a pendulum I member rotatably mounted in the casing and having a fluid passagewaytherethrough and a chamber with an open end that is adapted to aline with the casing opening, a lubricant controlling stem that is mounted in the chamber and is: insertible and removable through the casing opening, andmeans' for holding the stem in place,said means being insertible with the stem through the casing opening and fricti'onally holding the stem in place while permitting its removal.

5. In a lubricator, the combination with a casing forming a lubricant reservoir and having an opening in one side, of a pendulum member rotatably mounted in thecasing and having a fluid passageway therethrough and a chamber with an open end thatis adapted to aline with the casing opening, a lubricant controlling stem that isrotatably mounted in the chamber and is insertible and removable through the casing opening, and a spring carried by the stem and frictionally engaging the wall of the chamber for holding the stem in place and permitting its removal, said spring being insertible with the stem throughthe casing opening.

6. In a lubricator, the combination with means for journaling the pendulum to per- 7 mit it to swing and also forming with the pendulum a passageway for fluid through the casing, and means carried by the pendulum for directing lubricant from the reser voir into the passageway.

8. A lubricator comprising side and end walls that are integral toform a single piece casingthat encloses a lubricant reservoir, said end walls having coupling elements providedwithbpenings, a pendulum-in thereservoir of greatersize than the openings and having a passageway through it, sleeves engaged in the openings and passageway and constituting with the passageway means of communiction between the coupling elements, and means carried by the pendulum for directing lubricant from the reservoir casing that encloses a'lubricant reservoir,

said end ,walls having coupling elements provided with openings, apendulum in the reservoir ofgreater size than the openings but narrower than the space between theend walls, said pendulum having a passageway throu h it sleeves en a 'ed in the casin 7 b D openings, bridging the spaces between the end walls'and the pendulum and engaged in the passageway of thependulum, said sleeves and passageway constituting with the passageway means of communication be tween the coupling elements, and means carried by the pendulum for directing lubricant from the reservoir into the passageway.

In testimonyfwhereof, I affix my signature.

EDWARD F. TERRY.

a single piece casing enclosing a lubricant I reservoir and having end ports and an openmg 1n one s1de, of a pendulum 1n the casing V of greater size'than the opening, said pendulum having a passageway therethrough,

and means for directing lubricant from the reservoir into the passageway, and sleeves 

